English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/170558
Share/Impact:
Statistics
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Preparation and Characterization of Graphene Oxide Aerogels: Exploring the Limits of Supercritical CO2 Fabrication Methods

AuthorsBorrás, Alejandro ; Gonçalves, Gil; Marbán, Gregorio; Sandoval, Stefania ; Pinto, Susana; Marques, Paula A. A. P.; Fraile, Julio ; Tobias, Gerard ; López Periago, Ana M. ; Domingo Pascual, M. Concepción
KeywordsGraphene oxide
Aerogel
Supercritical CO2
Mesoporous
Mechanical integrity
Issue Date2-Oct-2018
PublisherWiley-VCH
CitationChemistry - a European Journal: 10.1002/chem.201803368 (2018)
AbstractThe supercritical carbon dioxide synthesis of non-reduced graphene oxide (GO) aerogels from dispersions of GO in ethanol is here reported as a low-cost, efficient and environmentally friendly process. The preparation is carried out at the mild conditions of 333 K and 20 MPa. The high aspect ratio of the used GO sheets (ca. 30 μm lateral dimensions) allowed the preparation of aerogel monoliths by simultaneous scCO2 gelation and drying. Solid state characterization results indicate that a thermally stable mesoporous non-reduced GO aerogel was obtained by using the supercritical procedure, keeping the GO sheets most of the surface oxygenated groups, thus, facilitating further functionalization. Moreover, the monoliths have a very low density, high specific surface area and excellent mechanical integrity, characteristics which rivals with that of most light-weight reduced graphene aerogels reported in the literature.
Publisher version (URL)http://dx.doi.org/10.1002/chem.201803368
URIhttp://hdl.handle.net/10261/170558
ISSN0947-6539
Appears in Collections:(ICMAB) Artículos
Files in This Item:
File Description SizeFormat 
Borras_ChemEurJ_2018_postprint.pdf Embargoed until October 2, 2019Información principal458,79 kBAdobe PDFThumbnail
View/Open    Request a copy
Borras_ChemEurJ_suppl_2018_postprint.pdf Embargoed until October 2, 2019Información complementaria449,8 kBAdobe PDFThumbnail
View/Open    Request a copy
Show full item record
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.